org.pdfbox.io
Class ASCII85InputStream

java.lang.Object
  java.io.InputStream
      java.io.FilterInputStream
          org.pdfbox.io.ASCII85InputStream

public class ASCII85InputStream

extends FilterInputStream

This class represents an ASCII85 stream.

Version:

$Revision: 1.6 $

Author:

Ben Litchfield

Field Summary

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

ASCII85InputStream(InputStream is)
Constructor.

Method Summary

int	available() Unsupported.
void	close() This will close the underlying stream and release any resources.
void	mark(int readlimit) Unsupported.
boolean	markSupported() non supported interface methods.
int	read() This will read the next byte from the stream.
int	read(byte[] data, int offset, int len) This will read a chunk of data.
void	reset() Unsupported.
long	skip(long nValue) Unsupported.

Methods inherited from class java.io.FilterInputStream

read

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ASCII85InputStream

public ASCII85InputStream(InputStream is)

Constructor.

Parameters:

is - The input stream to actually read from.

Method Detail

read

public final int read()
               throws IOException

This will read the next byte from the stream.

Returns:

The next byte read from the stream.

Throws:

IOException - If there is an error reading from the wrapped stream.

read

public final int read(byte[] data,
                      int offset,
                      int len)
               throws IOException

This will read a chunk of data.

Parameters:

data - The buffer to write data to.

offset - The offset into the data stream.

len - The number of byte to attempt to read.

Returns:

The number of bytes actually read.

Throws:

IOException - If there is an error reading data from the underlying stream.

close

public void close()
           throws IOException

This will close the underlying stream and release any resources.

Throws:

IOException - If there is an error closing the underlying stream.

markSupported

public boolean markSupported()

non supported interface methods.

Returns:

False always.

skip

public long skip(long nValue)

Unsupported.

Parameters:

nValue - ignored.

Returns:

Always zero.

available

public int available()

Unsupported.

Returns:

Always zero.

mark

public void mark(int readlimit)

Unsupported.

Parameters:

readlimit - ignored.

reset

public void reset()
           throws IOException

Unsupported.

Throws:

IOException - telling that this is an unsupported action.